Deposition of amyloid in the walls of blood vessels in lamina propria of the duodenum. A rare cause of secondary amyloidosis: common variable immunodeficiency disease: Kadiroğlu AK, Yıldırım Y, Yılmaz Z, Kayabaşı H, Avcı Y, Yıldırım MS, Yılmaz ME - Case reports in nephrology (2012). Not altered. CC.
Secondary immunodeficiencies are the result of disease or other environmental factors weakening the immune system. A prime examples of a secondary immunodeficiency disorder is acquired immunodeficiency syndrome (AIDS).